Details:

Creators:
Tremblay, Jason P. ; Colgrove, George W.
Tremblay, Jason P. ; Colgrove, George W. Less -
Corporate Creators:
Vermont. Agency of Transportation. Materials and Research Section
Corporate Contributors:
United States. Federal Highway Administration
Subject/TRT Terms:
[+]
Concrete Pavements Evaluation Field Studies Joint Sealing Pavement Maintenance
Publication/ Report Number:
2013-11
Resource Type:
Tech Report
Geographical Coverage:
Vermont
Corporate Publisher:
Vermont. Agency of Transportation. Materials and Research Section
Abstract:
Joint sealing and resealing is a commonly performed concrete pavement maintenance activity that serve

s

two

purposes. First, it minimizes water infiltration; second, it prevents intrusion of solid materials in the joints. There

are many sealants available for resealing concrete joints including hot

-

poured, rubberized asphalt sealants and

silicone sealants

. According to a Federal Highway Administration technology brief, “the hot

-

poured, rubberized

asphalt sealants are less expensive than silicone materials but generally have shorter life expectancies (typically, 4

to 8 years for hot

-

poured sealants and 5 t

o 10 for silicone sealants) [1].

In the fall of 2007, the City of Winooski resealed some of the pavement joints located along US Route 2 and 7 as

part of their periodic preventative maintenance work, with a new hot

-

poured product, TechCrete, manufactured

by

Crafco. According to Crafco, this flexible material is a hot

-

poured product for concrete repairs, which provides high

tensile strength and high compressive resistance. It is comprised of a combination of several resins, polymers,

and aggregate. In ad

dition, it has proven to provide a long

-

term life span in most applications. According to the

manufacturer, once the material has properly cured, the materials will not de

-

bond or crack while remaining flexible

during the expansion and contraction of the

adjacent concrete slabs. Additionally, the affected lane can be open to

traffic within one hour of application.

In 2008, Crafco contacted VTrans to have TechCrete added to the Approved Products list. This study is an

evaluation of the product. VTran

s selected the Winooski site and a site in South Burlington where a concrete

pavement was placed in 1997 that exhibited similar deterioration, to conduct a field evaluation of the product.


Format:
PDF
Funding:
2008-R-02 (MOD)
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:2b432ddf87874bbe10e7b155894b8dc05f9160a30f3baa674d2e24f8d2410a19
Download URL:
https://rosap.ntl.bts.gov/view/dot/28322/dot_28322_DS1.pdf
File Type:

Supporting Files

• No Additional Files

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